DatasheetsPDF.com

Step-Down Converter. RT8060 Datasheet

DatasheetsPDF.com

Step-Down Converter. RT8060 Datasheet






RT8060 Converter. Datasheet pdf. Equivalent




RT8060 Converter. Datasheet pdf. Equivalent





Part

RT8060

Description

1A High Efficiency Step-Down Converter



Feature


RT8060 1.5MHz, 1A High Efficiency Step- Down Converter General Description The RT8060 is a current mode, high efficie ncy PWM stepdown DC/DC converter that c an support a wide input voltage range f rom 2.7V to 5.5V, while delivering up t o 1A output current. The current mode o peration provides fast transient respon se and eases loop stabilization. A 1.5M Hz frequency opera.
Manufacture

Richtek

Datasheet
Download RT8060 Datasheet


Richtek RT8060

RT8060; tion allows the use of a smaller inducto r to meet the space and height limitati ons handheld applications. The RT8060 i s available in a SOT-23-5 package. Ord ering Information RT8060 Package Type B : SOT-23-5 Lead Plating System G : Gre en (Halogen Free and Pb Free) Note : Ri chtek products are : ` RoHS compliant a nd compatible with the current require- ments of IPC/JEDE.


Richtek RT8060

C J-STD-020. ` Suitable for use in SnPb or Pb-free soldering processes. Markin g Information 3R=DNN 3R = : Product C ode DNN : Date Code Features z 2.7V to 5.5V Wide Input Voltage Range z Adjust able Output Voltage z 1A Output Current z Up to 95% Efficiency z .


Richtek RT8060

.

Part

RT8060

Description

1A High Efficiency Step-Down Converter



Feature


RT8060 1.5MHz, 1A High Efficiency Step- Down Converter General Description The RT8060 is a current mode, high efficie ncy PWM stepdown DC/DC converter that c an support a wide input voltage range f rom 2.7V to 5.5V, while delivering up t o 1A output current. The current mode o peration provides fast transient respon se and eases loop stabilization. A 1.5M Hz frequency opera.
Manufacture

Richtek

Datasheet
Download RT8060 Datasheet




 RT8060
RT8060
1.5MHz, 1A High Efficiency Step-Down Converter
General Description
The RT8060 is a current mode, high efficiency PWM step-
down DC/DC converter that can support a wide input
voltage range from 2.7V to 5.5V, while delivering up to 1A
output current. The current mode operation provides fast
transient response and eases loop stabilization.
A 1.5MHz frequency operation allows the use of a smaller
inductor to meet the space and height limitations handheld
applications.
The RT8060 is available in a SOT-23-5 package.
Ordering Information
RT8060
Package Type
B : SOT-23-5
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
3R=DNN
3R = : Product Code
DNN : Date Code
Features
z 2.7V to 5.5V Wide Input Voltage Range
z Adjustable Output Voltage
z 1A Output Current
z Up to 95% Efficiency
z 1.5MHz Fixed Frequency PWM Operation
z Power Good Indicator
z Over Current Protection
z Internal Sort-Start
z No Schottky Diode Required
z Internal Compensation
z RoHS Compliant and Halogen Free
Applications
z Storage Device : HDD/ODD
z Wireless and DSL Modems
Pin Configurations
(TOP VIEW)
FB VIN
54
23
PGOOD GND LX
SOT-23-5
Typical Application Circuit
L
VIN
4 VIN
LX 3
2.2µH
VOUT
CIN
4.7µF
RT8060
FB
5
R1
200k
C1
10pF
COUT
10µF
1 PGOOD GND 2
R2
200k
DS8060-03 April 2011
www.richtek.com
1




 RT8060
RT8060
Functional Pin Description
Pin No.
Pin Name
1 PGOOD
Power Good Indicator.
2 GND
Ground.
3 LX
Switch Node.
4 VIN
Supply Input.
5 FB
Feedback Input.
Pin Function
Function Block Diagram
Slope
Compensation
OSC &
Shutdown
Control
Current
Sense
Current
Limit
Detector
PWM
Comparator
Control
Logic
FB Error
Amplifier
RC
CCOMP
UVLO &
Power Good
Detector
VREF
Driver
VIN
RS1
LX
RS2
GND
PGOOD
www.richtek.com
2
DS8060-03 April 2011




 RT8060
RT8060
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, VIN ------------------------------------------------------------------------------------------ 0.3V to 6.5V
z LX Pin Voltage -------------------------------------------------------------------------------------------------------- 0.3V to (VIN + 0.3V)
z Other I/O Pin Voltage ----------------------------------------------------------------------------------------------- 0.3V to 6.5V
z Power Dissipation, PD @ TA = 25°C
SOT-23-5 -------------------------------------------------------------------------------------------------------------- 0.4W
z Package Thermal Resistance (Note 2)
SOT-23-5, θJA --------------------------------------------------------------------------------------------------------- 250°C/W
z Junction Temperature Range -------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C
z Storage Temperature Range -------------------------------------------------------------------------------------- 65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions (Note 4)
z Supply Input Voltage ------------------------------------------------------------------------------------------------ 2.7V to 5.5V
z Junction Temperature Range -------------------------------------------------------------------------------------- 40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------- 40°C to 85°C
Electrical Characteristics
(VIN = 3.6V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Quiescent Current
Reference Voltage
Under Voltage Lockout
Threshold
IQ
VREF
VUVLO
VIN Rising
Hysteresis
Switching Frequency
PGOOD Low Threshold
fSW
VFB Falling
PGOOD High Threshold
VFB Rising
Thermal Shutdown Temperature
Switch On Resistance, High
Switch On Resistance, Low
Peak Current Limit
Output Voltage Line Regulation
TSD
RPFET
RNFET
ILIM
Output Voltage Load Regulation
ILX = 0.2A
ILX = 0.2A
VIN = 2.7V to 5.5V
0A < ILOAD < 0.6A
Min Typ Max Unit
-- 78 -- μA
0.588 0.6 0.612
2 2.3 2.45
-- 0.2 --
V
V
1.2 1.5 1.8 MHz
-- 85 -- %VREF
-- 90 -- %VREF
-- 150 --
°C
-- 250 -- mΩ
-- 200 -- mΩ
1.1 1.5
2
A
-- 0.1 -- %/V
-- 1 -- %/A
DS8060-03 April 2011
www.richtek.com
3



Recommended third-party RT8060 Datasheet






@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)